“Boreotrophon and the Importance of Studying Coastal Erosion; Act II”

 

Good morning beautiful Monterey Bay!  This is a 3 million year old fossil of the small marine muricid gastropod genus Boreotrophon, perhaps something close to B. vancouverensis which was first described as a new species by our colleague Shawn Wiedrick et. al. in 2019. This little fellow is known from living specimens today in the colder waters of British Columbia to Alaska. Up until the discovery of this specimen in a rockfall here in Santa Cruz 4 years ago, this species didn’t have a fossil record, if it is indeed this species. More work is necessary to reveal its taxonomic affinities. This discovery is further evidence of the great changes our Monterey Bay has seen over time, perhaps experiencing colder waters in the past, as well as highlighting the importance of conserving and studying our dynamic coastline for what it reveals about the ancient history of our area.  

#Paleontologist, #paleontology,  #SantaCruz, #santacruzcounty, #pacificpaleontology, @pacificpaleontology, #beachfossils, #fossil, #fossilhunting, #fieldwork, #beachcombing, #santacruzmuseum, #MontereyBay, #SCMNH, #UCMP, #californiaacademyofscience, #academyofscience,  #ucmpberkeley, #LACMIP, #NHMLA, #newrecord, #newdiscovery, #gastropod,  

“THE DEVELOPMENTAL ARCHITECTURE OF SIX ARTICULATED ROCKFALLS FROM 2020 to JANUARY, 2023: RF10.20A-F”

 

One of the more important pieces that I didn’t fully convey in the video is that from this and other rockfalls happening here, several hundred in all, my colleagues and I have recorded from the rock history record several dozen fossil species that indicate the potential for much warmer periods of water in Monterey Bay if you go back several million years.  These species have never been known from this region in the past and, of the ones that are not extinct today, represent species with modern ranges that are much further south.  More data needs to be collected and analyzed before we can make definitive conclusions, but the outlook initially is for periods of warmer water in Monterey Bay and Eustatic sea levels much higher than today by several hundreds of feet.  And we are also discovering and describing new species that have never been known to science until now as well, all of which is very exciting!   “This is the story of six articulated rock falls in Santa Cruz, California, that I mapped over time: it all started very small with a very small rock fall back in 2020…

"Sand Dollars Under the Sea: Fossil Sand Dollar Extraction and Prep"

 

This is an example of Dendraster ashleyi or Dandraster gibbsii; we believe the two are synonymous.  This is one of the most common fossil sand dollars found in Santa Cruz.  There are some other specimens from our area that look more closely like Dendraster excentricus but those are extremely rare, only two specimens are known, and there is another species in a different genus called Scuttellaster of the species oregonensis that are found more commonly in the south bay but these are beautiful fossils; They are all extinct species, no longer living today, and they are gorgeous to find along the beach especially in the strand line, and just very beautiful.  The genus Dendraster living today out in the Bay form big colonies on the bottom of the ocean if you dive down under surface you can see them there forming a purple carpet, all nestled in the sand at about a 45-degree angle.  Here's one of the living species on the left hand side and on the right is the fossil, probably ancestral to the modern one.

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Pacific Paleontology #FossilFriday #beachfossils #fossils #fossilhunting

#fieldworkresearch #beachcombing #santacruzmuseum #montereybay

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#californiaacademyofsciences #academyofsciences #ucmpberkeley

#lacmip #nhmla #fosssilprep #paleo #purisima #PurisimaFormation #sanddollar

#fosssilprep #paleo #purisima